Finding the Fourth Proportional to 285,586,201.05, 428,433,068.97 and 203,501,448.05
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Solution
The fourth proportional to 285,586,201.05, 428,433,068.97 and 203,501,448.05 is: 305,290,485.34
Step by Step Solution
- Step 1: Write the proportion equation
285,586,201.05 : 428,433,068.97 = 203,501,448.05 : x - Step 2: Convert to fraction form
285,586,201.05/428,433,068.97 = 203,501,448.05/x - Step 3: Cross multiply
285,586,201.05x = 428,433,068.97 × 203,501,448.05 - Step 4: Simplify right side
285,586,201.05x = 87,186,749,925,758,352 - Step 5: Solve for x
x = 87,186,749,925,758,352/285,586,201.05 - Step 6: Final answer
x = 305,290,485.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.